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Show round video preview.

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This commit is contained in:
John Preston 2024-10-17 13:54:18 +04:00
parent 6bc1049858
commit 17996757fd
2 changed files with 47 additions and 15 deletions
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57
Telegram/SourceFiles/ui/controls/round_video_recorder.cpp
View file

@ -10,6 +10,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
#include "base/debug_log.h"
#include "ffmpeg/ffmpeg_utility.h"
#include "media/audio/media_audio_capture.h"
#include "ui/image/image_prepare.h"
#include "ui/painter.h"
#include "ui/rp_widget.h"
#include "webrtc/webrtc_video_track.h"
@ -637,50 +638,76 @@ void RoundVideoRecorder::hide(Fn<void(RoundVideoResult)> done) {
}
}
void RoundVideoRecorder::prepareFrame() {
if (_frameOriginal.isNull() || _preparedIndex == _lastAddedIndex) {
return;
}
_preparedIndex = _lastAddedIndex;
const auto owidth = _frameOriginal.width();
const auto oheight = _frameOriginal.height();
const auto omin = std::min(owidth, oheight);
const auto ox = (owidth > oheight) ? (owidth - oheight) / 2 : 0;
const auto oy = (owidth < oheight) ? (oheight - owidth) / 2 : 0;
const auto from = QRect(ox, oy, omin, omin);
const auto bytesPerLine = _frameOriginal.bytesPerLine();
const auto depth = _frameOriginal.depth() / 8;
const auto shift = (bytesPerLine * from.y()) + (from.x() * depth);
auto copy = QImage(
_frameOriginal.constBits() + shift,
omin, omin,
bytesPerLine,
_frameOriginal.format());
const auto ratio = style::DevicePixelRatio();
_framePrepared = Images::Circle(copy.scaled(
_side * ratio,
_side * ratio,
Qt::KeepAspectRatio,
Qt::SmoothTransformation));
_framePrepared.setDevicePixelRatio(ratio);
}
void RoundVideoRecorder::setup() {
const auto raw = _preview.get();
const auto side = style::ConvertScale(kSide * 3 / 4);
_side = style::ConvertScale(kSide * 3 / 4);
_descriptor.container->sizeValue(
) | rpl::start_with_next([=](QSize outer) {
raw->setGeometry(
style::centerrect(
QRect(QPoint(), outer),
QRect(0, 0, side, side)));
QRect(0, 0, _side, _side)));
}, raw->lifetime());
raw->paintRequest() | rpl::start_with_next([=] {
auto p = QPainter(raw);
auto hq = PainterHighQualityEnabler(p);
prepareFrame();
auto info = _descriptor.track->frameWithInfo(true);
if (!info.original.isNull()) {
const auto owidth = info.original.width();
const auto oheight = info.original.height();
const auto omin = std::min(owidth, oheight);
const auto ox = (owidth > oheight) ? (owidth - oheight) / 2 : 0;
const auto oy = (owidth < oheight) ? (oheight - owidth) / 2 : 0;
const auto from = QRect(ox, oy, omin, omin);
p.drawImage(QRect(0, 0, side, side), info.original, from);
auto p = QPainter(raw);
if (!_framePrepared.isNull()) {
p.drawImage(QRect(0, 0, _side, _side), _framePrepared);
} else {
auto hq = PainterHighQualityEnabler(p);
p.setPen(Qt::NoPen);
p.setBrush(QColor(0, 0, 0));
p.drawEllipse(0, 0, side, side);
p.drawEllipse(0, 0, _side, _side);
}
_descriptor.track->markFrameShown();
}, raw->lifetime());
_descriptor.track->renderNextFrame() | rpl::start_with_next([=] {
const auto info = _descriptor.track->frameWithInfo(true);
if (!info.original.isNull() && _lastAddedIndex != info.index) {
_lastAddedIndex = info.index;
_frameOriginal = info.original;
const auto ts = info.mcstimestamp;
_private.with([copy = info.original, ts](Private &that) {
that.push(ts, copy);
});
}
_descriptor.track->markFrameShown();
raw->update();
}, raw->lifetime());
_descriptor.track->markFrameShown();
raw->show();
raw->raise();

5
Telegram/SourceFiles/ui/controls/round_video_recorder.h
View file

@ -57,11 +57,16 @@ private:
class Private;
void setup();
void prepareFrame();
const RoundVideoRecorderDescriptor _descriptor;
std::unique_ptr<RpWidget> _preview;
crl::object_on_queue<Private> _private;
QImage _frameOriginal;
QImage _framePrepared;
int _lastAddedIndex = 0;
int _preparedIndex = 0;
int _side = 0;
bool _paused = false;
};